Question

A projectile is fired at an upward angle of 45 from the top of a 256m cliff with a speed of
185 m=sec. What will be its speed when it strikes the ground below?

Answer 1

we will break this question up into x and y components of speed (aka velocity), and into 3 events: event1 - when projectile is fired, event2-when projectile reaches it's peak, and event 3- when the projectile strikes the ground